Home / 35,509.59-53,263.85-20,539.20

Finding the Fourth Proportional to 35,509.59, 53,263.85 and 20,539.20

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Solution

The fourth proportional to 35,509.59, 53,263.85 and 20,539.20 is: 30,808.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,509.59 : 53,263.85 = 20,539.20 : x
  2. Step 2: Convert to fraction form
    35,509.59/53,263.85 = 20,539.20/x
  3. Step 3: Cross multiply
    35,509.59x = 53,263.85 × 20,539.20
  4. Step 4: Simplify right side
    35,509.59x = 1,093,996,688.85
  5. Step 5: Solve for x
    x = 1,093,996,688.85/35,509.59
  6. Step 6: Final answer
    x = 30,808.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.